DESCRIPTION

The shorewall6 utility is used to control the Shoreline Firewall 6
(Shorewall6).

OPTIONS

The trace and debug options are used for debugging. See
http://www.shorewall.net/starting_and_stopping.htm#Trace.
The nolock option prevents the command from attempting to acquire the
Shorewall6 lockfile. It is useful if you need to include shorewall6
commands in /etc/shorewall6/started.
The options control the amount of output that the command produces.
They consist of a sequence of the letters v and q. If the options are
omitted, the amount of output is determined by the setting of the
VERBOSITY parameter in shorewall6.conf[1](5). Each v adds one to the
effective verbosity and each q subtracts one from the effective
VERBOSITY. Anternately, v may be followed immediately with one of
-1,0,1,2 to specify a specify VERBOSITY. There may be no white space
between v and the VERBOSITY.
The options may also include the letter t which causes all progress
messages to be timestamped.

COMMANDS

The available commands are listed below.
allow
Re-enables receipt of packets from hosts previously blacklisted by
a drop, logdrop, reject, or logreject command.
check
Compiles the configuraton in the specified directory and discards
the compiled output script. If no directory is given, then
/etc/shorewall6 is assumed.
The -e option causes the compiler to look for a file named
capabilities. This file is produced using the command
shorewall6-liteshow-fcapabilities>capabilities on a system
with Shorewall6 Lite installed.
The -d option causes the compiler to be run under control of the
Perl debugger.
The -p option causes the compiler to be profiled via the Perl
-wd:DProf command-line option.
The -r option was added in Shorewall 4.5.2 and causes the compiler
to print the generated ruleset to standard out.
clear
Clear will remove all rules and chains installed by Shorewall6. The
firewall is then wide open and unprotected. Existing connections
are untouched. Clear is often used to see if the firewall is
causing connection problems.
compile
Compiles the current configuration into the executable file
pathname. If a directory is supplied, Shorewall6 will look in that
directory first for configuration files. If the pathname is
omitted, the file firewall in the VARDIR (normally
/var/lib/shorewall/) is assumed. A pathname of ´-´ causes the
compiler to send the generated script to it´s standard output file.
Note that ´-v-1´ is usually specified in this case (e.g.,
shorewall6-v-1compile---) to suppress the ´Compiling...´
message normally generated by /sbin/shorewall6.
When -e is specified, the compilation is being performed on a
system other than where the compiled script will run. This option
disables certain configuration options that require the script to
be compiled where it is to be run. The use of -e requires the
presense of a configuration file named capabilities which may be
produced using the command shorewall6-liteshow-fcapabilities>capabilities on a system with Shorewall6 Lite installed
The -d option causes the compiler to be run under control of the
Perl debugger.
The -p option causes the compiler to be profiled via the Perl
-wd:DProf command-line option.
drop
Causes traffic from the listed addresses to be silently dropped.
dump
Produces a verbose report about the firewall configuration for the
purpose of problem analysis.
The -x option causes actual packet and byte counts to be displayed.
Without that option, these counts are abbreviated. The -m option
causes any MAC addresses included in Shorewall6 log messages to be
displayed.
The -l option causes the rule number for each Netfilter rule to be
displayed.
export
If directory1 is omitted, the current working directory is assumed.
Allows a non-root user to compile a shorewall6 script and stage it
on a system (provided that the user has access to the system via
ssh). The command is equivalent to:
/sbin/shorewall6compile-edirectory1directory1/firewall&&\scp directory1/firewalldirectory1/firewall.conf [user@]system:[directory2]
In other words, the configuration in the specified (or defaulted)
directory is compiled to a file called firewall in that directory.
If compilation succeeds, then firewall and firewall.conf are copied
to system using scp.
forget
Deletes /var/lib/shorewall6/filename and /var/lib/shorewall6/save.
If no filename is given then the file specified by RESTOREFILE in
shorewall6.conf[1](5) is assumed.
help
Displays a syntax summary.
iptrace
This is a low-level debugging command that causes iptables TRACE
log records to be created. See ip6tables(8) for details.
The ip6tablesmatchexpression must be one or more matches that may
appear in both the raw table OUTPUT and raw table PREROUTING
chains.
The trace records are written to the kernel´s log buffer with
faciility = kernel and priority = warning, and they are routed from
there by your logging daemon (syslogd, rsyslog, syslog-ng, ...) --
Shorewall has no control over where the messages go; consult your
logging daemon´s documentation.
load
If directory is omitted, the current working directory is assumed.
Allows a non-root user to compile a shorewall6 script and install
it on a system (provided that the user has root access to the
system via ssh). The command is equivalent to:
/sbin/shorewall6compile-edirectorydirectory/firewall&&\scpdirectory/firewalldirectory/firewall.confroot@system:/var/lib/shorewall6-lite/&&\sshroot@system´/sbin/shorewall6-litestart´
In other words, the configuration in the specified (or defaulted)
directory is compiled to a file called firewall in that directory.
If compilation succeeds, then firewall is copied to system using
scp. If the copy succeeds, Shorewall6 Lite on system is started via
ssh.
If -s is specified and the start command succeeds, then the remote
Shorewall6-lite configuration is saved by executing shorewall6-litesave via ssh.
if -c is included, the command shorewall6-liteshowcapabilities-f>/var/lib/shorewall6-lite/capabilities is executed via ssh then
the generated file is copied to directory using scp. This step is
performed before the configuration is compiled.
If -r is included, it specifies that the root user on system is
named root-user-name rather than "root".
logdrop
Causes traffic from the listed addresses to be logged then
discarded. Logging occurs at the log level specified by the
BLACKLIST_LOGLEVEL setting in shorewall6.conf[1] (5).
logwatch
Monitors the log file specified by the LOGFILE option in
shorewall6.conf[1](5) and produces an audible alarm when new
Shorewall6 messages are logged. The -m option causes the MAC
address of each packet source to be displayed if that information
is available. The refresh-interval specifies the time in seconds
between screen refreshes. You can enter a negative number by
preceding the number with "--" (e.g., shorewall6logwatch---30).
In this case, when a packet count changes, you will be prompted to
hit any key to resume screen refreshes.
logreject
Causes traffic from the listed addresses to be logged then
rejected. Logging occurs at the log level specified by the
BLACKLIST_LOGLEVEL setting in shorewall6.conf[1] (5).
noiptrace
This is a low-level debugging command that cancels a trace started
by a preceding iptrace command.
The iptablesmatchexpression must be one given in the iptrace
command being cancelled.
refresh
All steps performed by restart are performed by refresh with the
exception that refresh only recreates the chains specified in the
command while restart recreates the entire Netfilter ruleset.When
no chain name is given to the refresh command, the mangle table is
refreshed along with the blacklist chain (if any). This allows you
to modify /etc/shorewall6/tcrulesand install the changes using
refresh.
The listed chains are assumed to be in the filter table. You can
refresh chains in other tables by prefixing the chain name with the
table name followed by ":" (e.g., nat:net_dnat). Chain names which
follow are assumed to be in that table until the end of the list or
until an entry in the list names another table. Built-in chains
such as FORWARD may not be refreshed.
Example:
shorewall6refreshnet2fwnat:net_dnat #Refresh the ´net2loc´ chain in the filter table and the ´net_dnat´ chain in the nat table
reload
If directory is omitted, the current working directory is assumed.
Allows a non-root user to compile a shorewall6 script and install
it on a system (provided that the user has root access to the
system via ssh). The command is equivalent to:
/sbin/shorewall6compile-edirectorydirectory/firewall&&\scpdirectory/firewalldirectory/firewall.confroot@system:/var/lib/shorewall6-lite/&&\sshroot@system´/sbin/shorewall6-literestart´
In other words, the configuration in the specified (or defaulted)
directory is compiled to a file called firewall in that directory.
If compilation succeeds, then firewall is copied to system using
scp. If the copy succeeds, Shorewall6 Lite on system is restarted
via ssh.
If -s is specified and the restart command succeeds, then the
remote Shorewall6-lite configuration is saved by executing
shorewall6-litesave via ssh.
if -c is included, the command shorewall6-liteshowcapabilities-f>/var/lib/shorewall6-lite/capabilities is executed via ssh then
the generated file is copied to directory using scp. This step is
performed before the configuration is compiled.
If -r is included, it specifies that the root user on system is
named root-user-name rather than "root".
reset[chain,...]
Resets the packet and byte counters in the specified chain(s). If
no chain is specified, all the packet and byte counters in the
firewall are reset.
restart
Restart is similar to shorewall6start except that it assumes that
the firewall is already started. Existing connections are
maintained. If a directory is included in the command, Shorewall6
will look in that directory first for configuration files.
The -n option causes Shorewall6 to avoid updating the routing
table(s).
The -f option suppresses the compilation step and simply reused the
compiled script which last started/restarted Shorewall6.
restore
Restore Shorewall6 to a state saved using the shorewall6save
command. Existing connections are maintained. The filename names a
restore file in /var/lib/shorewall6 created using shorewall6save;
if no filename is given then Shorewall6 will be restored from the
file specified by the RESTOREFILE option in shorewall6.conf[1](5).
safe-restart
Only allowed if Shorewall6 is running. The current configuration is
saved in /var/lib/shorewall6/safe-restart (see the save command
below) then a shorewall6restart is done. You will then be prompted
asking if you want to accept the new configuration or not. If you
answer "n" or if you fail to answer within 60 seconds (such as when
your new configuration has disabled communication with your
terminal), the configuration is restored from the saved
configuration. If a directory is given, then Shorewall6 will look
in that directory first when opening configuration files.
safe-start
Shorewall6 is started normally. You will then be prompted asking if
everything went all right. If you answer "n" or if you fail to
answer within 60 seconds (such as when your new configuration has
disabled communication with your terminal), a shorewall6 clear is
performed for you. If a directory is given, then Shorewall6 will
look in that directory first when opening configuration files.
save
The dynamic blacklist is stored in /var/lib/shorewall6/save. The
state of the firewall is stored in /var/lib/shorewall6/filename for
use by the shorewall6restore and shorewall6-fstart commands. If
filename is not given then the state is saved in the file specified
by the RESTOREFILE option in shorewall6.conf[1](5).
show
The show command can have a number of different arguments:
actions
Produces a report about the available actions (built-in,
standard and user-defined).
capabilities
Displays your kernel/ip6tables capabilities. The -f option
causes the display to be formatted as a capabilities file for
use with compile-e.
[ [ chain ] chain... ]
The rules in each chain are displayed using the ip6tables-Lchain-n-v command. If no chain is given, all of the chains in
the filter table are displayed. The -x option is passed
directly through to ip6tables and causes actual packet and byte
counts to be displayed. Without this option, those counts are
abbreviated. The -t option specifies the Netfilter table to
display. The default is filter.
The -l option causes the rule number for each Netfilter rule to
be displayed.
If the -t option and the chain keyword are both omitted and any
of the listed chains do not exist, a usage message is
displayed.
classifiers|filters
Displays information about the packet classifiers defined on
the system as a result of traffic shaping configuration.
config
Dispays distribution-specific defaults.
connections
Displays the IP connections currently being tracked by the
firewall.
log
Displays the last 20 Shorewall6 messages from the log file
specified by the LOGFILE option in shorewall6.conf[1](5). The
-m option causes the MAC address of each packet source to be
displayed if that information is available.
macros
Displays information about each macro defined on the firewall
system.
mangle
Displays the Netfilter mangle table using the command ip6tables-tmangle-L-n-v.The -x option is passed directly through to
ip6tables and causes actual packet and byte counts to be
displayed. Without this option, those counts are abbreviated.
policies
Added in Shorewall 4.4.4. Displays the applicable policy
between each pair of zones. Note that implicit intrazone ACCEPT
policies are not displayed for zones associated with a single
network where that network doesn´t specify routeback.
tc
Displays information about queuing disciplines, classes and
filters.
zones
Displays the current composition of the Shorewall6 zones on the
system.
start
Start shorewall6. Existing connections through shorewall6 managed
interfaces are untouched. New connections will be allowed only if
they are allowed by the firewall rules or policies. If a directory
is included in the command, Shorewall6 will look in that directory
first for configuration files. If -f is specified, the saved
configuration specified by the RESTOREFILE option in
shorewall6.conf[1](5) will be restored if that saved configuration
exists and has been modified more recently than the files in
/etc/shorewall6. When -f is given, a directory may not be
specified.
The -n option causes Shorewall6 to avoid updating the routing
table(s).
stop
Stops the firewall. All existing connections, except those listed
in shorewall6-routestopped[2](5) or permitted by the
ADMINISABSENTMINDED option in shorewall6.conf[1](5), are taken
down. The only new traffic permitted through the firewall is from
systems listed in shorewall6-routestopped[2](5) or by
ADMINISABSENTMINDED.
status
Produces a short report about the state of the
Shorewall6-configured firewall.
try
If Shorewall6 is started then the firewall state is saved to a
temporary saved configuration (/var/lib/shorewall6/.try). Next, if
Shorewall6 is currently started then a restart command is issued;
otherwise, a start command is performed. if an error occurs during
the compliation phase of the restart or start, the command
terminates without changing the Shorewall6 state. If an error
occurs during the restart phase, then a shorewall6restore is
performed using the saved configuration. If an error occurs during
the start phase, then Shorewall6 is cleared. If the start/restart
succeeds and a timeout is specified then a clear or restore is
performed after timeout seconds.
version
Displays Shorewall6´s version. If the -a option is included, the
version of Shorewall will also be displayed.